St. Lucie County Sheriff's Office deputies said a 911 caller traveling south on I-95 reported seeing the driver of a Ford Bronco firing a gun out of the passenger side window. The caller then followed the SUV into Fort Pierce.

Fort Pierce police followed the SUV to a RaceTrac gas station, where officers took the driver, later identified as Ellis, into custody.

Police said they found a gun in the SUV.

According to the arrest report, Ellis told deputies he was on his way to visit his uncle in Merritt Island and "wanted to have some fun by firing his gun while he was fishing." Ellis told detectives he was firing at paper targets.

Detectives said Ellis became very worried and asked if anyone was hurt. Detectives said he told them he hadn't slept in four days and didn't remember shooting out of his Bronco.